# Multi-stage build for Rust backend services
FROM rust:1.75-slim as builder

WORKDIR /app

# Install system dependencies
RUN apt-get update && apt-get install -y \
    pkg-config \
    libssl-dev \
    && rm -rf /var/lib/apt/lists/*

# Copy workspace manifests
COPY Cargo.toml Cargo.lock ./
COPY crates/aimds-core/Cargo.toml ./crates/aimds-core/
COPY crates/aimds-detection/Cargo.toml ./crates/aimds-detection/
COPY crates/aimds-analysis/Cargo.toml ./crates/aimds-analysis/
COPY crates/aimds-response/Cargo.toml ./crates/aimds-response/

# Copy Midstream platform dependencies
COPY ../crates/temporal-compare ./crates/temporal-compare
COPY ../crates/nanosecond-scheduler ./crates/nanosecond-scheduler
COPY ../crates/temporal-attractor-studio ./crates/temporal-attractor-studio
COPY ../crates/temporal-neural-solver ./crates/temporal-neural-solver
COPY ../crates/strange-loop ./crates/strange-loop

# Cache dependencies
RUN mkdir -p crates/aimds-{core,detection,analysis,response}/src && \
    echo "fn main() {}" > crates/aimds-core/src/lib.rs && \
    echo "fn main() {}" > crates/aimds-detection/src/lib.rs && \
    echo "fn main() {}" > crates/aimds-analysis/src/lib.rs && \
    echo "fn main() {}" > crates/aimds-response/src/lib.rs && \
    cargo build --release && \
    rm -rf crates/*/src

# Copy actual source code
COPY crates/ ./crates/

# Build release binary
RUN cargo build --release --workspace

# Runtime stage
FROM debian:bookworm-slim

RUN apt-get update && apt-get install -y \
    ca-certificates \
    libssl3 \
    && rm -rf /var/lib/apt/lists/*

WORKDIR /app

# Copy binaries from builder
COPY --from=builder /app/target/release/aimds-* /usr/local/bin/

# Health check
HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
    CMD curl -f http://localhost:8082/health || exit 1

EXPOSE 8082

# Run the backend service
CMD ["aimds-backend"]